I don't know about you guys but I always thought Mirko Filipovic was a very serious, some what mean tightass of a guy. I believed this until the other day when I went on Youtube to check out some Mirko fights and was shocked to see a couple clips of him doing practicle jokes. It turns out that Mirko is quite the jockster, so I thaught I should share a couple videos of this with you guys.